[haiku-bugs] Re: [Haiku] #7869: PANIC in mmu_init()
- From: "phoudoin" <trac@xxxxxxxxxxxx>
- Date: Mon, 05 Sep 2011 09:04:42 -0000
#7869: PANIC in mmu_init()
----------------------------------+------------------------------
Reporter: manveru | Owner: axeld
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: System/Boot Loader | Version: R1/alpha3
Resolution: | Keywords: sandy_bridge, i7
Blocked By: | Blocking: 7665
Has a Patch: 0 | Platform: All
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Comment (by phoudoin):
The BIOS reports 10 usable physical memory address ranges.
Unfortunatly, Haiku supports only 8 currently, hence why mmu_init()
failed.
I guess the solution should be to improve this limit, in
headers/private/kernel/boot/platform/bios_ia32/platform_kernel_args.h :
{{{
#!cpp
#define MAX_PHYSICAL_MEMORY_RANGE 32
#define MAX_PHYSICAL_ALLOCATED_RANGE 32
#define MAX_VIRTUAL_ALLOCATED_RANGE 32
}}}
I did a quick search, and I think there is no bad side-effect to fear, but
I'll prefer one kernel guru check this before applying such change. The
bios_ia32 platform may not be the unique one needing such change, too.
Meanwhile, if someone could test this change and report, thanks in
advance.
--
Ticket URL: <http://dev.haiku-os.org/ticket/7869#comment:5>
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